Graph

In mathematics, a graph is an abstract representation of a group of items where some pairs of the objects are connected by hyperlinks. The related items are exemplified by mathematical abstractions called vertices, and also the links that hook up some sets of vertices are called edges. Usually, a graph is illustrated in diagrammatic kind as a collection of dots for the vertices, followed by lines or arcs for the edges. Graphs are among the items of research in discrete mathematics.

The edges could be targeted (asymmetric) or undirected (symmetrical). For example, if the vertices exemplify individuals at a celebration, and also there is an edge in between 2 folks if they shake hands, then this is an undirected graph, considering if individual A moved hands with individual B, then individual B additionally moved hands by having person A.